/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/NiagaraNode.h
Gets which mode to use when deducing the type of numeric output pins from the types of the input pins.
virtual [ENiagaraNumericOutputTypeSelectionMode](API\Plugins\Niagara\ENiagaraNumericOutputTypeSelecti-) GetNumericOutputTypeSelectionMode() const